Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q142 (IAS/2000) Miscellaneous & General Knowledge › Important Days, Places & Events › Important Days, Places & Events

A bag contains 20 balls. 8 balls are green, 7 are white and 5 are red. What is the minimum number of balls that must be picked up from the bag blind-folded (without replacing any of it) to be assured of picking at least one ball of each colour ?

Result
Your answer: —  Â·  Correct: D
Explanation

Explanation intentionally skipped due to low exam relevance today.

How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
0%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

IAS · 2006 · Q69 Relevance score: -0.11

A box contains five set of balls while there are three balls in each set. Each set of balls has one colour which is different from every other set. What is the least number of balls that must be removed from the box in order to claim with certainly that a pair of balls of the same colour has been removed?

IAS · 2007 · Q18 Relevance score: -0.36

Five balls of different colours are to be placed in three different boxes such that any box contains at least one ball. What is the maximum number of different ways in which this can be done?

IAS · 2009 · Q72 Relevance score: -0.84

There are 240 balls and n number of boxes B1, B2, B3, ... , Bn. The balls are to be placed in the boxes such that should contain 4 balls more than B2, B2 should contain: 4 balls more than B3, and so on. Which one of the following cannot be the possible value of n ?

IAS · 2006 · Q128 Relevance score: -1.15

Each of 8 identical balls is to be placed in the squares shown in the figures given in a horizontal direction such that one horizontal row contains 6 balls and the other horizontal row contains 2 balls. In how many maximum different ways can this be done?

IAS · 2006 · Q133 Relevance score: -1.15

Each of 8 identical balls is to be placed in the squares shown in the figures given in a horizontal direction such that one horizontal row contains 6 balls and the other horizontal row contains 2 balls. In how many maximum different ways can this be done?